/nearest will return as many squids as you want
to get 10 squids go to /nearest/10
Added preliminary wpad support.

Fixed urls so they will actually return a 404 page if url is not valid.

Added very basic wpad support.

Added content-length to headers on nearest and wpad queries.
Added services tab to base.html.
Fixed shoal-server cpu usage.
Implemented basic Pika RabbitMQ asynchronous consumer, instead of a
blocking consumer.
Removed port setting in config, it is now defined in the
amqp_server_url.
Bumped Pika minimum version, and shoal-server version.